Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3584669.
So this is a simple little thing, but oh so important! If you want to use Sharpie Pens, you will definitely want this adapter. Otherwise, the pens wobble way too much to be useful!
Simply print it out, insert it into the original holder, aligning the hole with the original screw hole. Thread the screw into the holder, through the hole in the adapter. Place your Sharpie Pen in the adapter and tighten the screw down on it. Perfect fit and no wobble....
NOTE I posted this back in April. For some reason, I just found it unpublished. Well, here it is again.
*Due to either a Thingiverse bug or (more likely) shadowbanning, my models no longer show up under the [Newest] listings. If you want to see more of my models, please be sure to 'follow' me. If you print this, it would really help if you'd post a 'make' so that others could find this model. *